Polish months

https://polskiemiesiace.ipn.gov.pl/mon/all-events/september-1939/6799,September-1939.html
2021-10-26, 01:58

Polish September

In the early hours of 1 September 1939, without declaring war on Poland, Germany attacked along the whole length of the border between the two countries. Artillery barrage laid down on a Polish military transit depot by Schleswig-Holstein, a German battleship, has become a symbolic opening of the Second World War.

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